Wire-drawing machine.



0 o H B7 b" 8 F d e t n Du t a DI c. c. BALDWIN. WIRE'DRAWING MACHINE.

(Application filed July 6 1899.) (No Model.

2 Sheets-Sheet l.

THE NORRIS PETERS 00.. PHDTB-LITHQ. wAsmNsTon. me.

No. 643,584. Patented Feb. l3, I900. C.- C. BALDWIN.

WIRE DRAWING MACHINE.

(Application filed July 6, 1899.) (No Model.) 7 2 Sheata$heet 2 n 3 I IQIIIIH.

mum I UNITED STATES PATENT ii Trice.

CIIAUNOEY BALDWVIN, OF ELIZABETH, NEXV JERSEY.

WIRE-DRAWING MACHINE.

sPEcIFICATIQN forming part of Letters Patent No. 643,584, dated February 13, 1900.

Application filed July 6, 1899. Serial No. 722,922. (No model.)

To ttZZ whom it may concern:

Beitknown that I, OHAUNOEY O. BALDWIN, a citizen of the United States, residing at Elizabeth, county of Union, State of New Jersey, have invented certain new and useful Improvements in Double-Deck Wire-Drawing Machines, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

The present invention relates to that class of wire-drawing machines for drawing fine wire; and its object is to furnish a multiplex machine adapted to draw at least eight wires simultaneously and designed to occupy very little more room than the continuous machine for drawing one or two wires. This object is attained by arranging two tiers of drawingroll spindles one above the other and providing them with belt-pulleys having a common alinement, so that a single endless belt may be carried back and forth over all of the pulleys, and thus rotate the spindles in opposite directions. Two or more drawing-rolls may be mounted on both ends of each spindle and corresponding wire-dies arranged between the spindles, and four or more wires may thus be drawn simultaneously by the rolls of each tier. The eight or more wires drawn by the rolls of both tiers require eight or more winding-drums to receive the wire, and great inconvenience would be produced if such drums were all grouped at one end of the machine. With the construction described the wires drawn by each tier are delivered upon different levels at the ends of the machine, and by the rotation of the two tiers in opposite directions the winding-drums to receive the wire from the two tiers may be arranged one-half at each end of the machine. The windingdrums are provided with separate clutches, so that each may be stopped independently when the wire breaks or the drum is filled. Each drum and the set of dies which supplies the wire thereto can thus be operated with the same independence as if it were in a single-wire machine.

To apply an endless driving-belt readily to the pulleys in both tiers, it is desirable to arrange a return-pulley at one end of the machine under the lower tier and a guide-pulley at the opposite end, from which the belt may be led upwardly to the driving-pulley.

The invention will be understood by reference to the annexed drawings, in which Figures 1 and 2 show, respectively, a plan and elevation of the principal parts of a machine embodying my improvements, with a driving-pulley represented diagrammatically above Fig. 2. Fig. 3 is a side elevation of one end of the machine upon a larger scale, and Fig. 4 is an end View upon the same scale.

In Figs. 1 and 2 the fixtures are not shown for actuating the friction-wheels which are provided to drive the winding-drums, as the scale is too small to show such fixtures clearly. The machine is made with two side frames connected by tie-bars Ct, each frame having a lower main piece .formed upon its upper edge with a rail 1), and an upper rail 0 is supported upon such rail by feet or standards d. The upper and lower rails are similarly provided with aseries of bearin gs f, (twelve being shown on each rail,) and drawing-roll spindles g are extended across the frames through such bearings, and each end of each spindle is shown provided with two drawing-rolls h. The middle of each spindle is provided with a belt-pulley i.

Die-holders and dies n are provided between the drawing-rolls, and the wire 0 is led from a suit-able reel (not shown in the drawings) through the first die and successively around the drawing-rolls and through the other dies, as shown by arrows p and q, as is common in continuous wire drawing machines. The drawing-rolls and the spindles upon the rails 0 form the upper tier and deliver the wire, per arrows p, at the right-hand end of the frame, where winding-drumsj and 7c are supported upon vertical shafts r and s. The rolls of the spindles upon the rails 19 form the lower tier and deliver the wire, per arrows q, upon a lower level, and drums Z and m are suitably mounted upon shafts r and s at the left-hand end of the frame to receive such wires.

The return-pulley t for the driving-belt is mounted beneath the spindle g at the left end of the frame and is furnished with an axle havin g an adjustable bearingu, the bearing being movable on the frame by means of set-screws.

A guide-pulley o is supported by a vertically-adjustable axle w at the opposite end of the frame, and the driving-pulley a; is preferably located over such guide-pulley. An endless belt 1 is looped over such drivingpulley, and one side of the loop is extended back and forth over the spindle-pulleys 2, be ing carried first under the nearest pulley of the lower tier and carried last over the farthest pulley of the upper tier. From such farthest pulley it is carried below the returnpulley t and then along under the lower tier of spindles between the two frames to the guidepulley 'L, and from such guide-pulley the opposite side of the loop extends to the driving-pulley The belt is shown driven upwardly in its passage from the nearest pulley of thelower tier and downwardly in its passage from the guide-roller v to 'the driving-pulley, thus rotating the spindles of the lower tier to the left and the spindles of the upper tier to the right, as indicated by the arrows .2. The wire is delivered by the lower tier of d rawingrolls at the left-hand end of the machine, and the winding-drumsl and m are mounted at a much lower level than the drumsj and 7.; to receive the wire from such rolls.

Two drawing-rolls are shown upon each end of each spindle, and four winding-drums are thus required for each tier of the rolls. The drumsjand k are set, as shown in Figs. 1 and at, opposite one another in pairs and each pair driven from a single clutch-shaft l, which is rotated from the shaft to by chaingearing 2. The bevel friction-pinions 3 and t are fitted movably upon splines on the clutch-shaft adjacent to bevel friction-wheels 5 and 6, which are fixed to the shafts of the drumsj and 7;, respectively, below and above the pinions 3 and 4-.

Each movable pinion is provided with a clutch-collar '7 and a pivoted fork 8, and weighted levers 9 and 10 are fitted to the pivots of the forks upon the opposite sides of the machine to operate the clutches for the drumsj and 7;, respectively. The pivots of the forks are arranged in pairs and extended outwardly beyond the drums to receive the weighted levers 9 and are mounted uponthe framing of the drum-shafts by bearings 12. One of the fork pivots or shafts, as shown in Fig. 3, is offset for a portion of its length to clear the top of one of the bevel friction-wheels 3. The pivot of the fork is provided with a transverse pin 11 ,and the hub of each weighted lever is fitted to turn loosely upon the pivot of the fork and is notched to clear the pin in its vertical position, but to strike the same upon opposite sides when turned to the right and left, respectively. The weight of the lever thus operates to throw the pinion toward the adjacent bevel friction-wheel, as shown in the levers 9 at the left side of Fig. 4, or away from the bevel-wheehif moved reverse] y, as shown in the nearer lever 10 at the righthand side of Fig. 4. The weightedlever when tipped in one direction thus holds the pinion with a constant pressure against the bevelwheel and rotates the connected windingdrum so long as desired, and the tipping of the weighted lever in the opposite direction serves to stop such winding-drum independently of all the others.

The machine is operated as follows: Reels of the wire to be drawn are suitably supported beyond the ends of the machine, four at one end and four at the other, and the wires from one end are carried through the dies of the upper tier to the four drums 7' and 70, being wrapped around all the upper drawingrolls in their passage. The wires from the reels at the opposite end of the machine are carried in like manner through the dies of the lower tier and around the lowerdrawingrolls to the four drums Z and m, all the wires being carried through finishing-dies 13 before securing them to the drums. The driving-belt y may be continually operating while the wires are successively applied, as the drawing of the wire is not effected by the rolls it until the wire is secured to the proper drum and the drum set in motion by means of its own friction-wheel. All of the dies may thus be furnished with wire and eight wires drawn continuously so long as desired. Any of the drums may be stopped independently to remove the coil of finished wire or in case the wire breaks in the dies and started again when the wire is newly adjusted. Troughs 15 are shown in Fig. 1 inserted below the drawing-rolls, so thata lubricating liquid may be applied to the rolls, as usual; but such troughs are omitted from the other figures, as they form no part of the present invention. The dies and rolls overhang the rails b and c and are thus in the most convenient position for inspection by the operator.

It will be observed that although the machine is adapted to draw eight wires simultaneously only two wires are carried along each of the rails, as the drawing-rolls are adjacent to four rails of the machine. The dies through which the wires are passed are therefore very accessible, so that the operator can give the attention that is required and can remove or insert the dies with great facility.

The spindle-pulleys i require a common alinement to receive the belt 3 which is applied to them all in common, and by bending the belt back and forth over the two tiers of pulleys it operates to rotate the rolls of the two tiers in opposite directions, which permits the arrangement of one-half the winding-drums at one end of the machine and one-half at the other. The entire construction and arrangement of the machine thus avoids the arranging of anyor part of the winding-drums above the others, as would be required if the drawing-rolls all turned in the same direction.

The adjustable axles of the return-pulleys If and the guide-pulleyo permit those pulleys to be carefully adjusted to carry the returnbelt under the lower tier of pulleys and upwardly to the driving-pulley 02.

It will be observed that the two drawingrolls upon the ends of the spindles g are separated sufficiently to introduce another drawin g-roll, if desired, in which case the capacity of the machine would be increased one-half, and twelve winding-drums would be required instead of eight. Such additional drums could be readily mounted and actuated the same as those shown in the drawings, where the margin of each winding-drum is arranged tangential to the wire running from the drawing-roll. The machine is not therefore limited to any particular number of the drawingrolls upon each spindle g, provided the drawing-roll spindles are arranged in two tiers and furnished with belt-pulleys having common alinement and one side of an endless belt extending back and forth over all the spindlepulleys to drive the two tiers of spindles in opposite directions. Such arrangement offers the advantages which I have described, whether the machine be constructed with eight or more winding-drums.

Having thus set forth the nature of the invention, what is claimed herein is- 1. Acontinuous wire-drawing machine having drawing-roll spindles arranged in two tiers and provided wit-h belt-pulleys having a common alinement, a driving-pulley adjacent to one end of the machine, and an endless belt looped over such driving-pulley and hav-,/

ing one side of the loop extended back and forth over all of the spindle-pulleys to drive the two tiers of spindles in opposite directions.

2. Acontinuouswire-drawingmachinehaving drawing-roll spindles arranged in two tiers and provided with belt-pulleys having a common alinement, a return-pulley at one end of the machine, a guide-pulley at the opposite end, and an endless belt extended over all of the said pulleys to drive the two tiers of spindles in opposite directions.

3. A continuous wire-drawing machinehaving two tiers of spindles with drawing-rolls upon their opposite ends and provided with belt-pulleys having a common alinement, a driving-belt extended back and forth over all of the said pulleys to drive the two tiers of spindles in opposite directions, windingdrums at one end of the machine for the lower tier of drawing-rolls, drums at the opposite end of the machine for the upper tiers of drawing-rolls, and a separate clutch for stopping each of such winding-drums independently.

4. In a continuous wire-drawing machine, a double frame provided upon each side with two rails one above the other, rows of bearings upon such rails one above the other upon both sides of the machine, spindles fitted to such bearings across the frame with drawingrolls upon their opposite ends, and provided with belt-pulleys having a common alinement, and a belt extended back and forth over all of such pulleys to drive the spindles in the two tiers in opposite directions, substantially as herein set forth.

5. In a continuous wire-drawing machine, the double frame having upon each side the main piece provided with rail carrying alower series of bearings, an upper rail with feet supported upon such lower rail and carrying an upper series of bearings, spindles fitted to such bearings across the frame with drawingroll upon their opposite ends, and provided with belt-pulleys having a common alinement, a belt extended back and forth over all of such pulleys, winding-drums at one end of the machine a little above the level of the bottom railand winding-drums at the opposite end of the machine a little above the level of the upper rail, and suitable gearing to rotate such drums, substantially as herein set forth.

6. A continuous wire-drawin g machine having drawing-roll spindles arranged in two tiers and provided with belt-pulleys having a common alinement, the return-pulley i arranged below the lower tier at one end of the machine and having an adjustable axle, and a guidepulley at the opposite end of the machine with vertically-adjustable axle, and an endless belt applied to all of such pulleys to rotate the two tiers of spindles in opposite directions.

7. A continuous wire-drawing machine having a double frame with spindles extended across the frame and drawing-rolls upontheir opposite ends, vertical shafts and winding drums supported 'upon the opposite sides of the frame at one end, a clutch-shaft extended across the frame between such drum-shafts, friction bevel-pinions upon the opposite ends of such clutch-shaft,and friction bevel-wheels arranged respectively above and below such friotion-pinions upon the winding-drum shafts at the opposite sides of the machine whereby the said drums are all rotated in the same direction.

8. A continuous wire-drawing machine having a double frame with spindles extended across the frame and drawing-rolls upon their opposite ends, vertical shafts and windingdrums supported upon the opposite sides of the frame at one end, a clutch-shaft extended across the frame between such drum-shafts, friction bevel pinions with clutch-collars movable upon the opposite ends of such clutch-shaft, friction bevel-wheels upon the winding-drum shafts at the opposite sidesof the machine, forks for the clutch-collars and weighted levers movably connected with such forks, to fall upon opposite sides of the center when shifting the friction-pinions into and out of gear with the bevel-wheels, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

OHAUNOEY O. BALDWIN.

\Vitnesses:

T. HAMILTON WEIR, THOMAS S. CRANE. 

